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#![no_std]
#![no_main]
#![feature(type_alias_impl_trait)]
#[path = "../example_common.rs"]
mod example_common;
use defmt::panic;
use embassy::executor::Spawner;
use embassy_nrf::gpio::{Level, Output, OutputDrive};
use embassy_nrf::Peripherals;
use embassy_nrf::{interrupt, spim};
use embassy_traits::spi::FullDuplex;
use embedded_hal::digital::v2::*;
use example_common::*;
#[embassy::main]
async fn main(_spawner: Spawner, p: Peripherals) {
info!("running!");
let mut config = spim::Config::default();
config.frequency = spim::Frequency::M16;
let irq = interrupt::take!(SPIM3);
let mut spim = spim::Spim::new(p.SPI3, irq, p.P0_29, p.P0_28, p.P0_30, config);
let mut ncs = Output::new(p.P0_31, Level::High, OutputDrive::Standard);
// Example on how to talk to an ENC28J60 chip
// softreset
cortex_m::asm::delay(10);
unwrap!(ncs.set_low());
cortex_m::asm::delay(5);
let tx = [0xFF];
unwrap!(spim.read_write(&mut [], &tx).await);
cortex_m::asm::delay(10);
unwrap!(ncs.set_high());
cortex_m::asm::delay(100000);
let mut rx = [0; 2];
// read ESTAT
cortex_m::asm::delay(5000);
unwrap!(ncs.set_low());
cortex_m::asm::delay(5000);
let tx = [0b000_11101, 0];
unwrap!(spim.read_write(&mut rx, &tx).await);
cortex_m::asm::delay(5000);
unwrap!(ncs.set_high());
info!("estat: {=[?]}", rx);
// Switch to bank 3
cortex_m::asm::delay(10);
unwrap!(ncs.set_low());
cortex_m::asm::delay(5);
let tx = [0b100_11111, 0b11];
unwrap!(spim.read_write(&mut rx, &tx).await);
cortex_m::asm::delay(10);
unwrap!(ncs.set_high());
// read EREVID
cortex_m::asm::delay(10);
unwrap!(ncs.set_low());
cortex_m::asm::delay(5);
let tx = [0b000_10010, 0];
unwrap!(spim.read_write(&mut rx, &tx).await);
cortex_m::asm::delay(10);
unwrap!(ncs.set_high());
info!("erevid: {=[?]}", rx);
}
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